<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<meta http-equiv="Cache-Control" content="no-store"/>
<meta http-equiv="Pragma" content="no-cache"/>
<meta http-equiv="Expires" content="0"/>
<script type="text/javascript">
    var ctx = "${pageContext.request.contextPath}";
    if(top == self){
        if(top.location == self.location) {
            top.location = ctx + "/main/index.html?target=" + self.location;
        }
    }
</script>